Meghan Markle looked elegant in a £2,300 Caroline Herrera dress as she made a surprise joint appearance with Prince Harry on Saturday night.

The Duchess of Sussex, 44, and the Duke of Sussex, 41, delighted guests at Kevin Costner’s high-profile One805LIVE! charity concert in Santa Barbara, arriving unexpectedly at the star-studded fundraiser.

The Montecito-based mother-of-two chose a midnight blue collared halterneck dress by the Venezuelan-American designer, also championed by Melania Trump at last week’s State Banquet.

She paired it with a £631 two-tone brown clutch by Hunting Season New York and £390 suede heels from Ralph Lauren – another brand worn by Mrs Trump and Princess Kate last week.

Meghan Markle stuns in £2,300 gown as she champions same designer as Melania Trump

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Meghan wore her hair parted slightly to the side in larger, defined curls instead of her usual centre-parted waves.

She accessorised with her £5,000 Cartier Love bangle and Princess Diana’s £17,800 gold Cartier Tank watch.

The couple appeared in high spirits as they greeted first responders and law enforcement officers before stepping on stage to address the audience.

The concert raises funds for equipment and mental wellness programmes for Santa Barbara County’s first responders and features performances from Trisha Yearwood, Good Charlotte and The Fray.

Meghan Markle and Prince Harry pictured during the engagement

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Oprah Winfrey, a long-time friend of the couple, was among the guests.

In 2021, she conducted their explosive television interview in which they made allegations against the Royal Family.

Their latest outing follows Harry’s private 50-minute meeting with King Charles earlier this month at Clarence House — their first face-to-face conversation in 18 months.

According to reports, discussions are underway to bring father and son together publicly for the first time since April 2019.

Meghan Markle also appeared to have lighter highlights in her hair

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The Sussexes are also due to appear in an ABC News special airing today to mark Disneyland’s 70th anniversary.

The Happiest Story on Earth: 70 Years of Disneyland will feature Harry and Meghan reflecting on what the park means to them and their children, Archie, six, and Lilibet, four.

Stars including Neil Patrick Harris, Jamie Lee Curtis and Jon Favreau will all make cameos in the documentary.

The couple previously shared highlights from Lilibet’s birthday celebration at Disneyland, posting a video montage that showed the children meeting Frozen’s Elsa, riding attractions such as Dumbo the Flying Elephant and Space Mountain, and enjoying a Little Mermaid-themed cake.